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The effect of electron correlation on the angle dependence of magnetoconductivity is studied in quasi-one-dimensional organic conductors. We investigated the effect on the basis of the momentum dependence of both quasi-particle's lifetime…

Strongly Correlated Electrons · Physics 2007-05-23 Hirono Kaneyasu , Keita Kishigi , Yasumasa Hasegawa

While charge carriers can typically be designated as either electron- or hole- type, depending on the sign of the Hall coefficient, some materials defy this straightforward classification. Here we find that LaRh$_6$Ge$_4$ goes beyond this…

Strongly Correlated Electrons · Physics 2024-01-15 Shuaishuai Luo , Feng Du , Dajun Su , Yongjun Zhang , Jiawen Zhang , Jiacheng Xu , Yuxin Chen , Chao Cao , Michael Smidman , Frank Steglich , Huiqiu Yuan

We investigate the electronic structure of tungsten ditelluride (WTe$_2$) flakes with different thicknesses in magneto-transport studies. The temperature-dependent resistance and magnetoresistance (MR) measurements both confirm the breaking…

Materials Science · Physics 2021-10-27 Xurui Zhang , Vivek Kakani , John M. Woods , Judy J. Cha , Xiaoyan Shi

The interlayer magnetoresistance of a quasi-one-dimensional Fermi liquid is considered for the case of a magnetic field that is rotated within the plane perpendicular to the most-conducting direction. Within semi-classical transport theory…

Strongly Correlated Electrons · Physics 2009-10-31 Ross H. McKenzie , Perez Moses

We study magnetoresistivity oscillations in a high-mobility two-dimensional electron system subject to both microwave and dc electric fields. First, we observe that the oscillation amplitude is a periodic function of the inverse magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. T. Hatke , H. -S. Chiang , M. A. Zudov , L. N. Pfeiffer , K. W. West

We report the results of the angular-dependent magnetoresistance oscillations (AMROs), which can determine the shape of bulk Fermi surfaces in quasi-two-dimensional (Q2D) systems, in a highly hole-doped Fe-based superconductor KFe$_2$As$_2$…

Strongly Correlated Electrons · Physics 2015-05-20 M. Kimata , T. Terashima , N. Kurita , H. Satsukawa , A. Harada , K. Kodama , A. Sato , M. Imai , K. Kihou , C. H. Lee , H. Kito , H. Eisaki , A. Iyo , T. Saito , H. Fukazawa , Y. Kohori , H. Harima , S. Uji

The magnetoresistance oscillations in high-mobility two-dimensional electron systems induced by two radiation fields of frequencies 31 GHz and 47 GHz, are analyzed in a wide magnetic-field range down to 100 G, using the balance-equation…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 X. L. Lei , S. Y. Liu

The recently reported coexistence of an oscillatory magnetic order with the wave vector Q=0.241 \AA^{-1} and superconductivity in TmNi2B2C is analyzed theoretically. It is shown that the oscillatory magnetic order and superconductivity…

Superconductivity · Physics 2009-10-30 M. L. Kulic , A. I. Buzdin , L. N. Bulaevskii

In this paper we present a theoretical analysis of the effect of anomalies of the Fermi surface (FS) curvature on oscillations in the electron density of states (DOS) in strong magnetic fields. It is shown that the oscillations could be…

Materials Science · Physics 2007-05-23 Natalya A. Zimbovskaya

Low-dimensional organic conductors could establish themselves as model systems for the investigation of the physics in reduced dimensions. In the metallic state of a one-dimensional solid, Fermi-liquid theory breaks down and spin and charge…

Strongly Correlated Electrons · Physics 2007-11-08 Martin Dressel

The three-dimensional (3D) topological Dirac semimetal is a new topological phase of matter, viewed as the 3D analogy of graphene with a linear dispersion in the 3D momentum space. Here, we report the angular dependent magnetotransport in…

We present here a simple qualitative model that interpolates between the high and low temperature properties of quasi-1D conductors. At high temperatures we argue that transport is governed by inelastic scattering whereas at low…

Disordered Systems and Neural Networks · Physics 2009-10-30 Ivar Martin , Philip Phillips

We have carried out density-functional theory (DFT) calculations to study the magnetic stability of both ferromagnetic (FM) and anti-ferromagnetic (AFM) states in monolayer 1T-CrTe2. Our results show that the AFM order is lower in energy…

Materials Science · Physics 2023-10-31 Ahmed Elrashidy , Jia-An Yan

Metals typically have multiple Fermi surface sheets, and when they enter the superconducting state, some electrons on these sheets may remain uncondensed, or their superconducting pairs can be rapidly destroyed by a magnetic field.…

The nature of Fermi surface defines the physical properties of conductors and many physical phenomena can be traced to its shape. Although the recent discovery of a current-dependent nonlinear magnetoresistance in spin-polarized…

Two-dimensional interacting electrons exposed to strong perpendicular magnetic fields generate emergent, exotic quasiparticles phenomenologically distinct from electrons. Specifically, electrons bind with an even number of flux quanta, and…

Strongly Correlated Electrons · Physics 2019-07-31 Md. Shafayat Hossain , Meng K. Ma , M. A. Mueed , D. Kamburov , L. N. Pfeiffer , K. W. West , K. W. Baldwin , R. Winkler , M. Shayegan

We report a magnetoconductivity tensor $\sigma$ for the intercalated graphite CaC$_6$, in the ground state of the uniaxial charge density wave (CDW), under conditions of coherent magnetic breakdown due to strong external magnetic field $B$…

Mesoscale and Nanoscale Physics · Physics 2025-01-06 Petra Grozić , Anatoly M. Kadigrobov , Zoran Rukelj , Ivan Kupčić , Danko Radić

Motivated by the recent finding of superconductivity in layered CoO_2 compounds, we investigate superconducting and magnetic instabilities of interacting electrons on the two-dimensional triangular lattice. Using a one-loop renormalization…

Strongly Correlated Electrons · Physics 2009-11-10 Carsten Honerkamp

Universal conductance fluctuations are usually observed in the form of aperiodic oscillations in the magnetoresistance of thin wires as a function of the magnetic field B. If such oscillations are completely random at scales exceeding…

Disordered Systems and Neural Networks · Physics 2020-06-24 V. V. Brazhkin , I. M. Suslov

We demonstrate a new method for determining the Fermi velocity in quasi-two-dimensional (Q2D) organic conductors. Application of a magnetic field parallel to the conducting layers results in periodic open orbit quasiparticle trajectories…

Strongly Correlated Electrons · Physics 2009-09-29 A. E. Kovalev , S. Hill , K. Kawano , M. Tamura , T. Naito , H. Kobayashi
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